[SOLVED] must implement the inherited abstract method

[Rico Cordova]

Hello, this is my first post. I'm very new to Java (less than a week) and have decided to learn the language for personal use. I have several years of programming experience in other languages so the concepts of programming aren't new to me. The syntax is.

I was following an online tutorial and found that I would receive errors when I had the same code as the author did. Since the author didn't get the errors there was no mention as to how to handle the error.

The error: "The type tuna.theHandler must implement the inherited abstract method ActionListener.actionPerformed (ActionEvent)"

The Class:

import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JPasswordField;
import javax.swing.JOptionPane;

public class tuna extends JFrame
{
	private JTextField item1;
	private JTextField item2;
	private JTextField item3;
	private JPasswordField passwordField;
	
	public tuna()
	{
		super("The Title Bar");
		
		setLayout(new FlowLayout());
		
		item1 = new JTextField(10);
		add(item1);
		
		item2 = new JTextField("Enter text here: ");
		add(item2);
		
		item3 = new JTextField("Uneditable", 20);
		item3.setEditable(false);
		add(item3);
		
		passwordField = new JPasswordField("mypass");
		add(passwordField);
		
		theHandler handler = new theHandler();
		item1.addActionListener(handler);
		item2.addActionListener(handler);
		item3.addActionListener(handler);
		passwordField.addActionListener(handler);
	}
	
	private class theHandler implements ActionListener
	{
		public void actionPreformed(ActionEvent event)
		{
			String string = "";
			
			if (event.getSource() == item1)
			{
				string = String.format("field 1: %s", event.getActionCommand());
			}
			else if (event.getSource() == item2)
			{
				string = String.format("field 2: %s", event.getActionCommand());
			}
			else if (event.getSource() == item3)
			{
				string = String.format("field 3: %s", event.getActionCommand());
			}
			else if (event.getSource() == passwordField)
			{
				string = String.format("password field is: %s", event.getActionCommand());
			}
			
			JOptionPane.showMessageDialog(null, string);
		}
	}
}

The error occurs at the declaration of the private class theHandler (line 42).

I can run this code and get a GUI with the designated fields. If I actually press Enter on any field I get a long list of errors.

If you'd like me to document those errors as well I can - it's a lengthy list so I decided I'd hold on that for now.

Any suggestions?

[Matthew Brown]

Hi. Welcome to the Ranch!

Check your spelling of actionPerformed carefully. To implement the method you need to get the signature exactly right.

[Rico Cordova]

Wow, I feel like a fool! I expected my problem to be a subtlety of Java that I haven't mastered yet...nope I'm just having trouble with 3rd grade spelling.

Thank you very much!

_solved_